S
M
T
W
T
F
S
30
75°
54°
31
76°
51°
1
77°
52°
2
73°
50°
3
73°
49°
4
74°
51°
5
75°
54°
6
75°
55°
7
72°
53°
8
74°
49°
9
72°
48°
10
76°
56°
11
77°
55°
12
78°
57°
13
78°
54°
14
77°
53°
15
73°
46°
16
72°
47°
17
67°
55°
18
74°
54°
19
77°
53°
20
74°
45°
21
76°
43°
22
72°
42°
23
64°
43°
24
Hist. Avg.
70°
47°
25
Hist. Avg.
70°
47°
26
Hist. Avg.
69°
46°
27
Hist. Avg.
69°
46°
28
Hist. Avg.
68°
46°
29
Hist. Avg.
68°
45°
30
Hist. Avg.
67°
45°
1
Hist. Avg.
67°
44°
2
Hist. Avg.
66°
44°
3
Hist. Avg.
66°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Frankenmuth
Frankenmuth's September 2026 forecast shows daily high temperatures ranging from 64° to 78°, with overnight lows between 42° and 57°. The average high for September is 74° with an average low of 51°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Frankenmuth. See also: October | November | December.
